The Milwaukee® M18™ Brushless 2-Piece Combo Kit includes an M18™ Brushless 1/2 in. Hammer Drill/Driver and an M18™ Brushless 7-1/4 in. Circular Saw. The M18™ 1/2 in. Hammer Drill/Driver delivers the most power in its class while maintaining a compact size with a longer run-time. The built-in Redlink™ Technology and Redlithium™ batteries provide efficient power delivery and longer battery life. The brushless drill' has a 7 in. long body and weighs just 4.6 lb. with an XC4.0 battery. Its small and light build provides excellent control in overhead and tight spaces. The M18™ Brushless 7-1/4 in. Circular Saw delivers up to 40% more power than circular saws with brushed motors while giving up to 30% more run-time. This Brushless Circular Saw delivers 5，000 RPM for smooth cutting， and at only 9.0 lbs， it is lighter than most corded saws. This cordless circular saw also features an integrated rafter hook， magnesium guards， an aluminum shoe and LED light for maximum versatility.